Thermal and environmental control of spacecraft and astronauts during extravehicular activity requires the transfer of heat between various thermal sources and sinks. Solid/vapor heat pump technology utilizing a condensing/evaporating refrigerant holds considerable promise for space applications due to the variable temperature and variable load capabilities of these devices. In addition, solid/vapor adsorption systems involve no moving parts, may utilize non-toxic and non-flammable solid adsorbents and refrigerants, and are lightweight. This paper describes the fundamental operating characteristics of solid/vapor adsorption technology. The effects of (1) the choice of the specific refrigerant/adsorbent pair, (2) the thermal sink and source temperatures, and (3) the heat transfer characteristics of the adsorption beds on the performance of the system are described.
Solid/Vapor Adsorption Heat Pumps for Space Application
Sae Technical Papers
Intersociety Conference on Environmental Systems ; 1988
1988-07-01
Aufsatz (Konferenz)
Englisch
Heat transfer , Spacecraft , Parts , Lightweighting , Refrigerants , Pumps
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